Explanation:
- One of the main differences between adult and fetal circulation is <em>the direction and where the non-oxygenated and oxygenated blood circulates</em>. In adults arteries carry oxygenated blood away from the heart and veins carry non-oxygenated blood towards the heart; in fetuses, arteries carry non-oxygenated blood away from the heart and veins carry oxygenated blood back to the heart.
- Another difference is <em>where does the exchange of gases takes place</em>, in fetuses blood is oxygenated in the placenta, in adults in the lungs.
- The circulation between adults and fetuses differs in <em>where does the pressure increases</em>, in adults is on the left side of the heart, in fetuses on the right side.
- Finally,<em> another important difference between adults and fetuses is the presence of shunts</em>, in fetuses these shunts allow both sides of the heart to work parallelly letting mix blood from both ventricles. This shunt gets closed after birth, so adults do not have them.
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A capsid is the protein shell of a virus. It consists of several oligomeric structural subunits made of protein called protomers. The observable 3-dimensional morphological subunits, which may or may not correspond to individual proteins, are called capsomeres. The capsid encloses the genetic material of the virus.
An H+ proton gradient created by the ETC (electron transport chain) drives the ATP Synthase to produce ATP by chemiosmosis.
IT'S stigma as the stigma is the female part of the flower. it has a tube leading down to the ovules and they fertilize
Answer: organism
Explanation:
If something has all characteristics of life, it is known as an organism.
Some examples of characteristics of life are the ability to reproduce, grow, homeostasis, respond to their environment, the ability to adapt to things around them, etc.
<em>If you have answer options, and organism is not one of them, please let us know. Thank you.</em>
